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Detecting noise with shot noise using on-chip photon detector

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  • Y. Jompol

    (Nanoelectronics Group, Service de Physique de l’Etat Condense, IRAMIS/DSM (CNRS UMR 3680), CEA Saclay
    Present address: Department of Physics, Mahidol University, Bangkok, Thailand)

  • P. Roulleau

    (Nanoelectronics Group, Service de Physique de l’Etat Condense, IRAMIS/DSM (CNRS UMR 3680), CEA Saclay)

  • T. Jullien

    (Nanoelectronics Group, Service de Physique de l’Etat Condense, IRAMIS/DSM (CNRS UMR 3680), CEA Saclay)

  • B. Roche

    (Nanoelectronics Group, Service de Physique de l’Etat Condense, IRAMIS/DSM (CNRS UMR 3680), CEA Saclay)

  • I. Farrer

    (Semiconductor Physics group, Cavendish Laboratory, University of Cambridge)

  • D. A. Ritchie

    (Semiconductor Physics group, Cavendish Laboratory, University of Cambridge)

  • D. C. Glattli

    (Nanoelectronics Group, Service de Physique de l’Etat Condense, IRAMIS/DSM (CNRS UMR 3680), CEA Saclay)

Abstract

The high-frequency radiation emitted by a quantum conductor presents a rising interest in quantum physics and condensed matter. However, its detection with microwave circuits is challenging. Here, we propose to use the photon-assisted shot noise for on-chip radiation detection. It is based on the low-frequency current noise generated by the partitioning of photon-excited electrons and holes, which are scattered inside the conductor. For a given electromagnetic coupling to the radiation, the photon-assisted shot noise response is shown to be independent on the nature and geometry of the quantum conductor used for the detection, up to a Fano factor, characterizing the type of scattering mechanism. Ordered in temperature or frequency range, from few tens of mK or GHz to several hundred of K or THz respectively, a wide variety of conductors can be used like Quantum Point Contacts (this work), diffusive metallic or semi-conducting films, graphene, carbon nanotubes and even molecule, opening new experimental opportunities in quantum physics.

Suggested Citation

  • Y. Jompol & P. Roulleau & T. Jullien & B. Roche & I. Farrer & D. A. Ritchie & D. C. Glattli, 2015. "Detecting noise with shot noise using on-chip photon detector," Nature Communications, Nature, vol. 6(1), pages 1-5, May.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7130
    DOI: 10.1038/ncomms7130
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